Samsung MIM-B19N User manual

Airconditioner
Installationmanual
Modbus Interface Module MIM-B19N / MIM-B19NT
࡙Thank you forpurchasing this Samsung product.
࡙Before operating this unit, please read this Installation manual carefullyand retain it forfuture
reference.
DB68-07538A-03

2
English
Contents
SafetyInformation 3
SafetyInformation 3
Installation 5
Installing the Modbus Interface Module 5
Modbus interface module 5
About Modbus Interface module 8
Communication sequence 9
Checking Operation 11
økUʒʀɇϩͱ࡙ߨࣗƊkđkĘƟʒʀɇϩͱ࡙Ęͱϩʪϑͱϩʪθ˙ɇʀʪͱʒЇʪϑϩɇɇϩͱ ߢߢ
Ɗʪϩϩ˝ϩ˵ʪɇʒʒθʪϑϑЇϑ˝ϩ˵ʪUÃťɇʒθͱϩɇθцϑиϩʀ˵ʪϑ ߢߣ
Modbus RegisterTable 13
Adding NewModbus Register 17
ʒʒ˝ͱЇϩʒͱͱθЇϩ˙Їʀϩͱϑ࡙ ߢߨ
Adding indoorunit, HE/HT, AHU Kit, ERV, ERV+, Chiller, FCU and/orFCU Kit functions
Ɵ˵ʪͱиʪϑϩϑʪϩϩʪΧʪθɇϩЇθʪϑϩʪʒϩͱߣߡʒʪ˝θʪʪϩ˵ʪƸkɇʀʀͱθʒ˝ϩͱƸkࢋƊߦߡߢߡࣗߦࡠߣߡߢߧࢋ

3
English
SafetyInformation
This installation manual explains howto install a Modbus interface module that connects both the outdoorunit and the
ventilation system ofthe Samsung airconditionerto the Modbus system. Please read this manual thoroughlybefore installing
the product. (Please referto an appropriate installation manual forany optional product installation.)
WARNING
Hazards orunsafe practices that may result in severe personal injuryordeath.
CAUTION
Hazards orunsafe practices that may result in minor personal injuryor propertydamage.
Must followdirections.
UͱĘĮƟɇϩϩʪΧϩࢋ
Make sure the machine is grounded to prevent electric shock.
Unplug the powerplug from thewall socket.
UͱĘĮƟʒϑɇϑϑʪɵʪࢋ
FORINSTALLATION
WARNING
Contacta servicecenterforinstallation.
࡙Failure to do so mayresult in product malfunction,waterleakage, electric shock and fire.
Youmust usethe suppliedwireforinstallation.
࡙Failure to do so mayresult in fire ordamage to an Modbus interface module.
Allelectricworksshouldcomplywith localregulationsand installationwork carriedout bya qualifiedtechnician.
࡙Installation byan unqualified technician mayresult in product malfunction, electric shock, and fire.
Checkwhethertheinstallationworkis performedinaccordancewith the installation instructions.
࡙Incorrect installation of an Modbus interface module mayresult in electric shock orfire.
SafetyInformation

SafetyInformation
4English
SafetyInformation
FORINSTALLATION
CAUTION
Whenconnecting awire,do nottighten it toomuch.
࡙Failure to do so mayresult in breakage of thewire.
Make sure theModbus interface moduleinstallation doesn't cause interferencewith otherelectrical appliances,
particularlyin ahospital etc.
࡙Failure to do so mayresult in abnormal operation.
Do notinstall theproductin anareawherecombustiblegas leaks orpossiblegas leakageis expected.
࡙Failure to do so mayresult in breakage of thewire.
Donot installtheproduct in conditionswhereitis exposedtooil, steametc.
࡙Use of the product in an area exposed to oil, steam, sulfuric acid gas etc mayresult in component damage orproduct
malfunction.
Donot installtheproduct ina placewhereacid oralkali liquid orspecial sprays are used.
࡙Failureto do so mayresult in electric shock orabnormal operation.
FOROPERATION
WARNING
Do notremodel orrepairthe Modbusinterfacemoduleyourself.
࡙Failure to do so mayresult in product malfunction, electric shock and fire, so contact a service centerforrepair.
Whendisposing ofan Modbusinterfacemodule,contact aservice center.
Do notmove orreinstallaninstalled Modbusinterfacemoduleyourself.
࡙Failure to do so mayresult in electric shock orfire.
FOROPERATION
CAUTION
Make surethatwaterdoes notpermeate insidetheModbus interfacemodule.
࡙Failure to do so mayresult in electric shock orfire.
Do notconnect powercabletothe controlcableterminal.
࡙Failure to do so mayresult in fire.

5
English
Installation
Modbusinterfacemodule
Productand components
Name Interfacemodule DC powercable
(12V) Communication cable Case Cable tie
Shape
CN4
CN3
RED CN2 BLK
Connectingthe Modbus interface moduletotheDVM
1 Afterattaching a case to the side of the outdoorunit’s electric equipment section, install the Modbus Interface
Module.
2 Connect the powercable and communication cable ofthe Modbus Interface Module.
࡙ When a Modbus interface module is installed,you can perform a centralised control of all indoorunits connected to an
outdoorunit.
R1 R2
CN12
CN4
CN3
RED CN2 BLK
UAߢߣǤ ĮЇϩʒͱͱθЇϩϑЇɵɵͱɇθʒ
ĮЇϩʒͱͱθЇϩɇɵͱɇθʒ
Modbus Interface Module
Modbus system
A
B
InstallingtheModbusInterfaceModule

InstallingtheModbusInterfaceModule
6English
Installation
CAUTION
࡙ You should switch offthe powersupply and disconnect the powercable.
(Abnormal operation of the product mayoccurdue to the electric problem.)
3 Set the address of the Modbus interface module.
࡙ Ɵ˵ʪɇʒʒθʪϑϑʪϑͱ˙ɇđͱʒɵЇϑϩʪθ˙ɇʀʪͱʒЇʪϑЇϑϩɵʪʒ˙˙ʪθʪϩʪɇʀ˵ͱϩ˵ʪθࢋ࣍Ɗʪϩϩ˝θɇ˝ʪࡠߢϩͱߣߥߨ࣎
࡙ đɇʪϑЇθʪϩ˵ɇϩϩ˵ʪʒͱͱθЇϩɇʒʒθʪϑϑʪϑɇθʪϩ˵ʪθɇ˝ʪߡϩͱߥߨࢋ
ࣚ Ã˙цͱЇϑʪϩɇͱЇϩࣗͱ˙ࣗθɇ˝ʪɇʒʒθʪϑϑࡡϩϑͱϩθʪʀͱ˝іʪʒɇʒϩ˵ʪϩθɇʀ˝ʪθθͱθ࣍kߧߡߥ࣎ͱʀʀЇθϑࢋ
࡙ Afterchanging the indoorunit settings (address, 'Use of central control' option), the interface module must be reset.
࡙ Ǯ˵ʪʀͱʪʀϩ˝ɇߥߩߦʀͱЇʀɇϩͱʀɇɵʪɵʪϩиʪʪϩ˵ʪđͱʒɵЇϑϩʪθ˙ɇʀʪͱʒЇʪɇʒϩ˵ʪ9đƊࡡɵʪϑЇθʪϩͱɇϩʀ˵ϩ˵ʪ
polarity. If the polaritydoes not match, communication is impossible.
4 Set the 'Use of central control' option forindoor units.
࡙ Aʪϩθɇϑʪʒʀͱϩθͱɇʒͱϩͱθ˝ͱ˙ʒͱͱθЇϩϑɇθʪɇЭɇɇɵʪͱци˵ʪϩ˵ʪθ࢑Ƹϑʪͱ˙ʀʪϩθɇʀͱϩθͱ࢑ͱΧϩͱϑ࣍Ɗkߦ࣎ɇθʪ
ϑʪϩϩͱ࢑Ƹϑʪ࣍ߢ࣎࢑ࢋ
࡙ Ã˙ϩ˵ʪ࢑Ƹϑʪͱ˙ʀʪϩθɇʀͱϩθͱ࢑ͱΧϩͱϑ࣍Ɗkߦ࣎ͱ˙ɇʒͱͱθЇϩϑɇθʪϑʪϩϩͱ࢑UϑЇϑʪ࣍ߡ࣎࢑ࡡϩ˵ʪϩθɇʀ˝ʪθθͱθ࣍kߧߡߥ࣎ͱʀʀЇθϑࢋ
CAUTION
࡙ 9ͱϩ˵ʒϑϩɇʀʪϑ˙θͱϩ˵ʪđͱʒɵЇϑɇϑϩʪθϩͱϩ˵ʪ˙θϑϩɇʒɇϑϩđͱʒɵЇϑϩʪθ˙ɇʀʪͱʒЇʪϑЇϑϩɵʪиϩ˵ߢߡߡߡࢋ
࡙ You should switch offthe powersupply before installation.
࡙ The wiring should be installed in accordance with electricwiring regulations and should be placed inside thewall so that
users cannot touch them.

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Installation
ExampleofModbus interfacemoduleinstallation
ǽͱЇʀɇʀͱʪʀϩЇΧϩͱߥͱЇϩʒͱͱθЇϩϑ࣍ߢɇࡡߤϑЇɵϑ࣎ɇʒߥߩʒͱͱθЇϩϑϩͱʪɇʀ˵đͱʒɵЇϑϩʪθ˙ɇʀʪͱʒЇʪࢋ
CN4
CN3
RED CN2 BLK
CN4
CN3
RED CN2 BLK
ߢߣǤࣗĘU
ߢߣǤࣗĘU
ŵߢࣗŵߣ
ŵߢࣗŵߣ
ߢࣗߣ
ߢࣗߣ
Modbus RTU
࣍ŵƊߥߩߦࡡࣗ9࣎
Modbus Master

InstallingtheModbusInterfaceModule
8English
Installation
AboutModbusInterfacemodule
Specifications
Unit connection
protocol ƊɇϑЇ˝Aͱϩθͱøɇцʪθťθͱϩͱʀͱ࣍ŵߢࢥŵߣ࣎
Maximum numberof
connectableunits ߢͱЇϩʒͱͱθЇϩ࣍ߥͱЇϩʒͱͱθЇϩϑʀЇʒ˝ϑЇɵЇϩϑϩ˵ʪʀɇϑʪͱ˙ͱʒЇɇθ
ϑϩɇɇϩͱ࣎ɇʒߥߩʒͱͱθЇϩϑ
Modbus interface
module address
range ߢϩͱߣߥߨ
BMSunit protocol đͱʒɵЇϑŵƊߥߩߦ࣍ߣиθʪϑࡡɇуࢋߢߡߡߡ࣎
operating
temperaturerange ࣗߢߡϩͱߦߡঐ
Power UAߢߣǤ
Modbus
communication
Communication
protocol đͱʒɵЇϑŵƟƸkÃߥߩߦ
Devicetype Slave
Byte order
Big endian.
kЭʪθцΧͱϩ࢒ϑЭɇЇʪϑʪʀͱʒʪʒߣɵцϩʪθʪ˝ϑϩʪθϑ
࣍ʪЭʪ˙ϩϑΧͱϑϑɵʪЭɇЇʪϑɇθʪߡɇʒߢ࣎ࢋkɇʀ˵ЭɇЇʪϑʪуΧθʪϑϑʪʒđƊ9ࢋ
LSB format (big endian).
Settings
࡙9ɇЇʒθɇϩʪࡠߪߧߡߡɵΧϑ
࡙Uɇϩɇɵϩϑࡠߩ
࡙ƊϩͱΧɵϩࡠߢ
࡙ťɇθϩцࡠkЭʪ
Supported Modbus
functioncodes
ŵʪɇʒ˙Їʀϩͱϑࡠ
࡙ߤθʪɇʒ˵ͱʒ˝θʪ˝ϑϩʪθϑ
࡙ߥθʪɇʒΧЇϩθʪ˝ϑϩʪθϑ
Ǯθϩʪ˙Їʀϩͱϑࡠ
࡙ߧиθϩʪϑ˝ʪθʪ˝ϑϩʪθϑ
࡙ߢߧиθϩʪЇϩΧʪ˵ͱʒ˝θʪ˝ϑϩʪθϑ
࢘Įϩ˵ʪθ˙Їʀϩͱʀͱʒʪϑɇθʪϩθʪɇϩʪʒɇϑʪ˝ɇ˙ЇʀϩͱϑɇʒθʪϩЇθɇ
exception response.
࢘Ã˙ΧͱθʪʀͱθʒϑɇθʪЇϑʪʒϩͱθʪɇʒࢥиθϩʪЇϩΧʪθʪʀͱθʒϑࡡϩ˵ʪθɇ˝ʪͱ˙
addresses requested must containvalid addresses, otherwise the
corresponding Modbus error code is responded.

9
English
Installation
Communication sequence
SystemInitialization
࡙ At start-up, all registers havethe value 0.
࡙ Ǯ˵ʪϩ˵ʪϩθɇʀ˝ͱ˙ϩ˵ʪđͱʒɵЇϑϩʪθ˙ɇʀʪͱʒЇʪϑʀͱΧʪϩʪʒࡡɵϩϑߡϩͱߣͱ˙ϩ˵ʪʀͱЇʀɇϩͱϑϩɇϩЇϑθʪ˝ϑϩʪθ࣍θʪ˝ϑϩʪθ
ߢ࣎˙ͱθʪɇʀ˵ʒͱͱθЇϩɇθʪЇΧʒɇϩʪʒϩͱߢࢋ
࡙ Ã˙ɇɵϩϑߡϩͱߣͱ˙θʪ˝ϑϩʪθߢɇθʪߢʪЭʪ˙ͱθͱʪʒͱͱθЇϩࡡϩʪɇϑϩ˵ɇϩϩ˵ʪϩθɇʀ˝ͱ˙ɇʒͱͱθɇʒͱЇϩʒͱͱθЇϩϑ˵ɇϑ
been completed, andthat all indoorand outdoorregistervalues have been updated.
࡙ If bit 0 of the communication status registerforan indoorunit is 0, it means thatthis indoorunit is not connected.
࡙ Afterthe poweris turned on, the BMS periodicallyreadsthe communication status registervalues of indoor units. Then, if
ɇʒͱͱθЇϩиϩ˵ɇɵϩϑߡϩͱߣͱ˙ϩ˵ʪθʪ˝ϑϩʪθϑʪϩϩͱߢϑ˙ͱЇʒࡡʀͱϩθͱɇʒͱϩͱθ˝ɇθʪɇЭɇɇɵʪ˙ͱθϩ˵ʪ˙ͱЇʒʒͱͱθ
unit from that time.
࡙ Ɵ˵ʪ9đƊʀɇͱцʀͱϩθͱϩ˵ʪʒͱͱθЇϩϑиϩ˵ɇɵϩϑߡϩͱߣͱ˙ϩ˵ʪʀͱЇʀɇϩͱϑϩɇϩЇϑθʪ˝ϑϩʪθ˙ͱθϩ˵ʪʒͱͱθЇϩϑʪϩϩͱߢࢋ
Monitorand operateunitsfromtheBMS
࡙ When the BMSwrites avalue tothe holding register, a control command is sent tothe relevant indoorunit.
࡙ The holding registervalue foran indoorunit is not updated until a changed status value is received from that indoorunit.
࡙ Because the usermight be able to operate indoorunits with a remote control, the BMS must reads their status periodically.
࡙ If communication between an indoor/outdoorunit and the Modbus interface module is stopped, the last statusvalue is
retained until communication is resumed.
Modbus
interface module
Communication status
(51 bits 0 to 2): 0 (Not Ready)
Check
communication
status.
Monitoring
&
control
Poweron
Communication status
(51 bits 0 to 2) : 7 (Ready)
Indoorunit
BMS
Poweron
Check communication status (51).
Response: 0 (Not Ready)
Tracking
Response: Status
Change a value.
Response: Status
Check communication status (51).
Response: 7 (Ready)
Check indoorstatus
(input & holding registers).
Response: Status
Change a value inthe holding registers.
Response
Check indoorstatus
(input & holding registers).
Response: Status

InstallingtheModbusInterfaceModule
10 English
Installation
CAUTION
࡙ Ęͱϩʪϩ˵ɇϩи˵ʪϩ˵ʪǮθϩʪƊ˝ʪŵʪ˝ϑϩʪθͱθǮθϩʪđЇϩΧʪŵʪ˝ϑϩʪθϑʀͱɇʒϑθʪʀʪЭʪʒ˙ͱθɇ˵ͱʒ˝θʪ˝ϑϩʪθϑ࣍ϑʪʪ
ƟɇɵʪߣࢋđͱʒɵЇϑŵʪ˝ϑϩʪθƟɇɵʪ࣎˙θͱϩ˵ʪđͱʒɵЇϑɇϑϩʪθࡡϩ˵ʪđͱʒɵЇϑϩʪθ˙ɇʀʪͱʒЇʪ࣍đÃđࣗ9ߢߪĘࢥđÃđࣗ9ߢߪĘƟ࣎ɇиɇцϑ
sends a control commandto the indoorunits. Therefore, be sureto send a command tothe Modbus masteronlywhen
control (operation on/off, temperature setting, etc.) is required.
࡙If an identical command is issued consecutively, the same command is repeatedlysent to the indoorunits.
To check whetherthe write command operates normally, send a write commandto the masterand then read the register
status.
࡙ Ǯ˵ʪθʪɇʒ˝˙θͱͱθиθϩ˝ϩͱɇθʪ˝ϑϑϩʪθʀͱϑʪʀЇϩЭʪцࡡɵʪϑЇθʪϩͱϑʪʒɇʀͱɇʒɇϩʪɇϑϩߢߡϑɇ˙ϩʪθϩ˵ʪɇϑϩ
response is received from the Modbus interface module.
Table1.Exampleofsignal flow
Modbus
interface module Indoorunit RemarkBMS
Indoorpoweron
Response: Indoorpoweron IndoorPoweron
Response: Poweron
Indoorpoweroff
Response: Indoorpoweroff Indoorpoweroff
Response: Poweroff
Indoorpoweron
Response: Indoorpoweron Indoorpoweron
Response: Poweron
Indoorpoweron
Response: Indoorpoweron Indoorpoweron
Response: Poweron
Indoorpoweron
Response: Indoorpoweron Indoorpoweron
Response: Poweron